fits model: Wrx, Sti. make: Subaru. year: 2008–2014.

( Brand: Aem Induction ), ( Manufacturer Part Number: AEM21-478C ), ( Part Type: Intake ), ( Carb Acknowledgement Required: True )
The AEM Induction AEM21-478C Air Intake System is a high-performance upgrade for your 2008-2014 Subaru WRX STI. This air intake system is designed to enhance your vehicle's engine performance, delivering increased horsepower, torque, and throttle response.
The AEM21-478C Air Intake System features a high-flow, dry-filter design that utilizes a 3-inch diameter polished aluminum intake tube. This tube is constructed with a mandrel bend for maximum flow and minimal restriction. The intake tube is also equipped with a heat shield to protect the air filter from engine heat, ensuring optimal air temperature and density for improved engine performance.
The air intake system is equipped with a high-flow, washable synthetic air filter. This filter is designed to capture up to 99% of dirt, dust, and debris, while allowing maximum airflow. The synthetic filter also features a unique oil-coated mesh to reduce intake noise, providing a quiet and smooth operation.
The AEM Induction AEM21-478C Air Intake System is easy to install and comes with all necessary hardware and instructions. The intake system is also backed by AEM's Lifetime Limited Warranty, ensuring peace of mind and long-term performance.
In summary, the AEM Induction AEM21-478C Air Intake System is a high-quality, performance-enhancing upgrade for your 2008-2014 Subaru WRX STI. With its high-flow design, heat shield, and washable synthetic air filter, this intake system delivers increased horsepower, torque, and throttle response, while providing a quiet and smooth operation. Plus, with AEM's Lifetime Limited Warranty, you can trust that this intake system will deliver long-term performance and reliability.
Pros of buying AEM Induction AEM21-478C air intake for 2008-2014 Subaru WRX STI:1. Enhanced engine performance: The AEM air intake system can improve horsepower and torque, offering a more responsive and powerful driving experience.
2. High-quality materials: AEM uses high-quality materials such as aluminum, silicone, and stainless steel, ensuring durability and longevity.
3. Easy installation: The kit includes all necessary hardware and instructions, making installation relatively simple for DIY enthusiasts or professional mechanics.
4. Filter maintenance: The AEM air filter is washable and reusable, reducing costs associated with filter replacements.
Cons of buying AEM Induction AEM21-478C air intake for 2008-2014 Subaru WRX STI:1. Higher cost: Compared to OEM air intake systems, the AEM air intake system is more expensive.
2. Potential noise increase: The AEM air intake system may produce more noise, especially under heavy acceleration, which some users may find bothersome.
3. Potential tuning required: Depending on the specific car and modifications made, tuning may be necessary to ensure optimal engine performance and fuel efficiency.
Conclusion: The AEM Induction AEM21-478C air intake system is a worthwhile investment for Subaru WRX STI owners looking to enhance engine performance and driveability. While the higher cost and potential noise increase are drawbacks, the high-quality materials, easy installation, and filter maintenance make it a desirable upgrade for many. Ultimately, the decision to purchase this air intake system depends on individual preferences and priorities.
Recommendation: If you are looking to improve engine performance and are willing to invest in a high-quality air intake system, the AEM Induction AEM21-478C air intake for 2008-2014 Subaru WRX STI is a solid choice. However, be sure to consider the potential noise increase and the possibility of tuning required for optimal performance.
It is in good working condition with some signs of wear but nothing major. The filter has some rubbing marks on the underside of it where its not visible once installed and does affect performance at all. The carb Sticker is intact and present. What you see is what get, any questions feel free to ask.
Up for sale is a used AEM Silver Cold Air Intake Fits 2008 2014 Subaru WRX / STi. Same day shipping.